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A random laser based on electrospun polymeric composite nanofibers with dual-size distribution
Mário César Albuquerque de Oliveira1, Leonardo de Souza Menezes2, Pablo I R Pincheira3
1Graduate Program in Materials Science, Universidade Federal do Vale do São Francisco Juazeiro BA 48902-310 Brazil.
Nanoscale Advances
|September 22, 2022
Summary
Researchers developed flexible, environment-friendly random lasers using electrospun fibers with dual-size diameters. This dual-size structure enables both waveguiding and scattering, crucial for efficient random laser emission in organic nanofibrous systems.
Area of Science:
- Materials Science
- Optics and Photonics
- Nanotechnology
Background:
- Electrospun fibers offer a flexible platform for developing environment-friendly random lasers.
- Waveguiding and scattering phenomena within the fiber structure are critical for laser generation.
Purpose of the Study:
- To engineer electrospun fibers with a dual-size diameter distribution to optimize random laser performance.
- To investigate the combined effects of waveguiding and scattering for enhanced random laser emission.
- To assess the stability and potential for prolonged use of these random laser systems.
Main Methods:
- Fabrication of electrospun fibers with a broad distribution of diameters, specifically including sizes above and below the waveguiding critical value.
- Incorporation of rhodamine 6G as the gain medium within the polymer network.
- Characterization of random laser emission properties.
- Conducting degradation assays to evaluate system longevity.
Main Results:
- Successful generation of random laser emission from electrospun fibers with dual-size diameters.
- Demonstration that the combination of waveguiding and scattering enhances random laser performance.
- Observation of adequate lasing conditions within the polymer network.
Conclusions:
- Dual-size diameter distribution in electrospun fibers is an effective strategy for developing efficient organic nanofibrous random lasers.
- The synergistic effect of waveguiding and scattering is key to achieving random laser emission.
- The developed systems show potential for prolonged use, warranting further investigation into their stability.
